/*
* Copyright 2014 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/

package py.netty.core.twothreads;

import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelInboundHandler;
import io.netty.channel.ChannelOutboundHandler;
import io.netty.util.concurrent.EventExecutor;

final class DefaultChannelHandlerContext extends AbstractChannelHandlerContext {
  private final ChannelHandler handler;

  DefaultChannelHandlerContext(
      DefaultChannelPipeline pipeline, EventExecutor executor, String name,
      ChannelHandler handler) {
    super(pipeline, executor, name, isInbound(handler), isOutbound(handler));
    if (handler == null) {
      throw new NullPointerException("handler");
    }
    this.handler = handler;
  }

  private static boolean isInbound(ChannelHandler handler) {
    return handler instanceof ChannelInboundHandler;
  }

  private static boolean isOutbound(ChannelHandler handler) {
    return handler instanceof ChannelOutboundHandler;
  }

  @Override
  public ChannelHandler handler() {
    return handler;
  }
}
